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86577457 Performance Upgrade

PostPosted: Wed Aug 02, 2023 5:53 pm
by AlanHomes
What exactly is 86577457 engine performance "Envelope Package"?

Ordered one from our local ADI for a sold vehicle, they are out of stock. Is this a USB, software download from TAC? Just wondering if anyone else has ordered this.

Re: 86577457 Performance Upgrade

PostPosted: Wed Aug 02, 2023 6:00 pm
by Denise Trimble
Engineering Notes :

PART NUMBER 86577457. ENGINE KIT. IS CORRECT AS A CALIBRATION UPGRADE KIT. PLRASE REFER TO SERVICE INFORMATION DOCUMENT 6341682. FOR INSTALLATION. REFER TO PARTS WORKBENCH FOR LATEST PART ORDERING INFORMATION AND AVAILABILITY.